16855/P0471/001137

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16855/P0471/001137 - Exhaust Pressure Sensor 1 (G450): Implausible Signal

Possible Symptoms

  • Malfunction Indicator Light (MIL) ON

Possible Causes

  • Wiring and/or Connector(s) from/to Exhaust Pressure Sensor 1 (G450) faulty
  • Hose from/to Exhaust Pressure Sensor 1 (G450) faulty
  • Exhaust Pressure Sensor 1 (G450) faulty/incompatible

Possible Solutions

  • Check Wiring and/or Connector(s) from/to Exhaust Pressure Sensor 1 (G450)
  • Check Hose from/to Exhaust Pressure Sensor 1 (G450)
  • Check/Replace Exhaust Pressure Sensor 1 (G450)
    • Check Exhaust Pressure Sensor 1 (G450) Compatibility

Special Notes

  • This Fault Code often indicates an incorrect/incompatible Exhaust Pressure Sensor 1 (G450) being installed. VAG uses two different types of sensors:
    • through MY 2009 = 076-906-051-A (formerly 03G-906-051-A)
    • from MY 2010 = 076-906-051-B

If in doubt check the Part Number of the Exhaust Pressure Sensor 1 (G450) and compare it against the Parts Catalog.

  • With CBEA and CJAA engines, the factory documentation may show the wrong part location for the Exhaust Pressure Sensor 1 (G450). This sensor is in a foil pouch just behind the oil cap.
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